Answer:
The father is 50 and his son is 15.
Step-by-step explanation:
Double the tens digit of the father's age = 10
Plus 5 = 15 (the age of the son)
50 + 15 = 65 (the sum of their ages)
The reverse of the digits of the son's age is 51.
Subtract 1 = 50 (the age of the father)
The coefficient of determination r² is 0.769² = 0.591. This means that 59.1% of the data y can be explained by the linear relationship between x and y while the other 40.9% is still unexplained. The positive value for the correlation coefficient r means that as values for x increases, values for y also increase.
Answer:
- The height of the building is 111.2 feet
Step-by-step explanation:
According to the question we have a right triangle with:
- Horizontal leg of 75 feet,
- Angle opposite to vertical leg is 56°.
Use trigonometry to find the vertical leg h, the height of the building:
- tangent = opposite leg / adjacent leg
- tan 56° = h/75
- h = 75 tan 56°
- h = 111.2 feet (rounded)
-3(-x)-6=-3x+10
-3 -3
(-x)-6=-3x+7
-6 -6
(-x)=-3x+1
i only got this far!! im so sorry!!
Answer:
CI = 52-2x
Step-by-step explanation: